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DocuChain

The blockchain app to sign documents online with an advanced electronic signature.
Create certified digital signatures, protect every contract on an immutable ledger, and verify changes instantly.
Experience secure, transparent blockchain document signing today - sign up for early access!

Product Overview

DocuChain is a blockchain document signing platform that fuses secure cloud storage with advanced electronic signatures, safeguarding every contract, PDF, and legal agreement.

Each file's cryptographic hash is anchored to an immutable ledger, generating a tamper-proof audit trail and an optional digital signature certificate for instant electronic signature verification. Any unauthorized alteration breaks the hash—so fraud is impossible and every version remains transparent.

Built for lawyers, notaries, HR teams, and enterprises alike, DocuChain streamlines digital contract signing: simply upload a document, invite co-signers, and receive a certified e-signature in seconds. Stay compliant with eIDAS, UETA, and ESIGN, cut risk, and maintain full control over the integrity of your documents—no hardware tokens or plug-ins required.

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Use Case

Imagine you need to securely store and manage an important legal contract. With Docuchain, you can:

Prove Document Existence on the Blockchain

Upload any file and DocuChain creates a tamper-proof cryptographic hash stored on our blockchain document signing ledger. This hash acts as an irrefutable, time-stamped receipt—anyone can confirm the document's existence and integrity without ever exposing its contents.

Collect Multiple Certified Digital Signatures

Enable co-authors, clients, or counterparties to add an advanced electronic signature with their own private key. Each signer receives a digital signature certificate; every action is time-stamped and written to the blockchain, delivering transparent, verifiable digital contract signing for teams and enterprises.

Instant Signature & Date Verification

One click runs full digital signature verification - confirming signers, cryptographic validity, and exact signing times. Because the ledger is immutable, neither signatures nor timestamps can be altered, giving you trusted e-signature verification that stands up to legal scrutiny worldwide.

Ideal for law firms, banks, insurers, and enterprise teams that require tamper-proof digital contract signing, certified advanced electronic signatures, and an immutable audit trail to satisfy strict regulatory and risk-management standards.

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Key Benefits

Tamper-Proof Blockchain Security

Every file and advanced electronic signature is sealed with a cryptographic hash on our blockchain document signing ledger. The result? Data that cannot be edited or erased—protected by the same blockchain security that underpins today’s cryptocurrencies.

Real-Time Signature Verification

Instantly confirm any electronic signature and its timestamp. DocuChain issues a verifiable digital signature certificate for every signer, giving you indisputable proof of identity, date, and integrity.

Effortless Multi-Party e-Signatures

Invite clients or coworkers to sign documents online from any device. Each action is logged on-chain, creating one transparent record of who signed, what was signed, and when.

Immutable Audit Trail

Track every revision, comment, and signature event forever. Our decentralized ledger preserves a complete, court-ready audit trail that auditors and regulators can trust.

Built-In Global Compliance

Stay aligned with eIDAS, UETA, and ESIGN. DocuChain provides qualified electronic signatures and automated KYC, making cross-border transactions simple and secure.

Plug-and-Play Integration

Drop our REST API or low-code widgets into your CRM, ERP, or cloud storage. Elevate existing workflows with blockchain-powered e-signature solutions—no disruption required.

Leave your email to get early access to Docuchain, our blockchain document solution.

Sign up for early access today!